custom_stack = cell(5,1);
custom_stack{1} = imread('./custom/custom1.jpeg');
custom_stack{2} = imread('./custom/custom2.jpeg');
custom_stack{3} = imread('./custom/custom3.jpeg');
custom_stack{4} = imread('./custom/custom4.jpeg');
custom_stack{5} = imread('./custom/custom5.jpeg');
tmp = rgb2xyz(custom_stack{i});
fstack_lum{i} = tmp(:,:,2);
tmp = im2double(imgaussfilt(fstack_lum{i},sigma1));
fstack_high{i} = fstack_lum{i} - fstack_low{i};
tmp = im2double(imgaussfilt((fstack_high{i}).^2,sigma2));
d_list = {0.2,0.4,0.6,0.8,1};
nom = nom + wsharp{i}.*abs(d_list{i});
denom = denom + wsharp{i};